Solving for One Variable

Translate:
Five more than a number

• x + 5

• 5x

• 5 - x

• 5 divided by x

Tags

CCSS.6.EE.A.2A

Translate: 
Four times a number plus six IS 30.

• 4 + 6 = 30

• 4x + 6 = 30

• x + 4 times 6 = 30

• 30 = 4x

Solve for a:

-3a + 8 = 14

• a = -2

• a = -7.5

• a = 2

• a = 6

Tags

CCSS.7.EE.B.4A

Solve for x:

2x - 3 + 4x = 27

• x = 12

• x = 4

• x = 5

• x = 15

Tags

CCSS.8.EE.C.7B

Solve for b:
 3(b - 4) = -3

• b = 3

• b = -3

• b = 5

• b = -5

Tags

CCSS.7.EE.B.4A

Solve for b:
-11 + 3(b + 5) = 7

• b = 1

• b = -1

• b = 3

• b = -3

Tags

CCSS.7.EE.B.4A

Solve for k:

38 + 7k = 8(k + 4)

• k = 6

• k = 8

• k = -6

• k = 1

• -4

• 3

• -3

• 4

Tags

CCSS.8.EE.C.7B

What is the first step to solve this equation:

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

What operation would you perform first and then second when solving for m in the following equation? 10 + 7m = 17

• subtract 10, divide by 7

• divide by 7, subtract 10

• multiply by 7, add 10

• add 10, multiply by 7

Tags

CCSS.HSA.REI.A.1